cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17632/wrm9zmmpht.3
title: Supplementary Materials for A note on the Cox-model based partial likelihood for change-point detection in a covariate

description: This is the supplementary materials for the article A note on the Cox-model based partial likelihood for change-point detection in a covariate
It includes R code to reproduce the results in Section 5 of the article, and details of the numerical studies.
Details.pdf contains the description and details of the change-point detection methods.
Folder R contains the R code and analysis results of the numerical studies of the article. See readme.pdf in ./R for descriptions.
DOI: 10.17632/wrm9zmmpht.4
title: Dataset for A note on the Cox-model based partial likelihood for change-point detection in a covariate

description: This is the dataset of the article A note on the Cox-model based partial likelihood for change-point detection in a covariate.
It includes R code to reproduce the results in Section 5 of the article. The analysis results are also included.
See readme.pdf for descriptions.
DOI: 10.57760/sciencedb.iga.00933
title: Dataset of Black Soil Quality under Different Cultivation Methods (2003-2014)
title: 不同耕作方式下黑土质量数据集（2003-2014年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Black Soil Quality Dataset under Different Cultivation Methods (2003-2014)

Main content: This dataset reflects the effects of different cultivation methods on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset is mainly applied to the study of the evolution of black soil quality.

c. Service recipients

Students, managers, and researchers engaged in research related to agricultural ecology and ecological environment.

d. Time range of data

Data collection period is from 2003 to 2014

e. The spatial range and projection method of data

Northeast Black Soil Region
description: a. Data content (data file/table name, including observation index content)

Data file name: Black Soil Quality Dataset under Different Cultivation Methods (2003-2014)

Main content: This dataset reflects the effects of different cultivation methods on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset is mainly applied to the study of the evolution of black soil quality.

c. Service recipients

Students, managers, and researchers engaged in research related to agricultural ecology and ecological environment.

d. Time range of data

Data collection period is from 2003 to 2014

e. The spatial range and projection method of data

Northeast Black Soil Region
DOI: 10.57760/sciencedb.iga.00934
title: Black Soil Quality Dataset under Different Fertilization Measures (1998-2016)
title: 不同施肥措施下黑土质量数据集（1998-2016年）

description: a. Data content (data file/table name, including observation index content)

Data File Name: Black Soil Quality Dataset under Different Fertilization Measures (1998-2016)

Main content: This dataset reflects the effects of different fertilization measures on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset mainly provides data support for the study of the evolution of black soil quality.

c. Service recipients

Students, managers, and researchers engaged in research related to soil ecology and resource environment.

d. Time range of data

Data collection period is from 1998 to 2016

e. The spatial range and projection method of data

Northeast Black Soil Region
description: a. Data content (data file/table name, including observation index content)

Data File Name: Black Soil Quality Dataset under Different Fertilization Measures (1998-2016)

Main content: This dataset reflects the effects of different fertilization measures on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset mainly provides data support for the study of the evolution of black soil quality.

c. Service recipients

Students, managers, and researchers engaged in research related to soil ecology and resource environment.

d. Time range of data

Data collection period is from 1998 to 2016

e. The spatial range and projection method of data

Northeast Black Soil Region
DOI: 10.57760/sciencedb.iga.00935
title: Dataset on the evolution of black soil quality over different years of cultivation (1980-2015)
title: 不同开垦年限黑土质量演变数据集（1980-2015年）

description: a. Data content (data file/table name, including observation index content)

Data File Name: Black Soil Quality Evolution Dataset with Different Reclamation Years (1980-2015)

Main content: This dataset reflects the effects of different cultivation years on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset is mainly used for research on the protection of black soil resources and land use.

c. Service recipients

Students, managers, and researchers engaged in research related to agricultural ecology and ecological environment.

d. Time range of data

Data collection period is from 1980 to 2015

e. The spatial range and projection method of data

Northeast Black Soil Region
description: a. Data content (data file/table name, including observation index content)

Data File Name: Black Soil Quality Evolution Dataset with Different Reclamation Years (1980-2015)

Main content: This dataset reflects the effects of different cultivation years on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset is mainly used for research on the protection of black soil resources and land use.

c. Service recipients

Students, managers, and researchers engaged in research related to agricultural ecology and ecological environment.

d. Time range of data

Data collection period is from 1980 to 2015

e. The spatial range and projection method of data

Northeast Black Soil Region
DOI: 10.57760/sciencedb.iga.00936
title: Black Soil Quality Dataset under Different Land Use and Management Methods (1981-2016)
title: 不同土地利用和管理方式下黑土质量数据集（1981-2016年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Black Soil Quality Dataset under Different Land Use and Management Methods (1981-2016)

Main content: This dataset reflects the effects of different land use and management methods on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset is mainly applied to the study of the evolution of black soil quality.

c. Service recipients

Students, managers, and researchers engaged in research related to agricultural ecology and ecological environment.

d. Time range of data

The data collection period is from 1981 to 2016

e. The spatial range and projection method of data

Northeast Black Soil Region
description: a. Data content (data file/table name, including observation index content)

Data file name: Black Soil Quality Dataset under Different Land Use and Management Methods (1981-2016)

Main content: This dataset reflects the effects of different land use and management methods on soil physical and chemical properties, biological characteristics, as well as water and nutrients in the black soil area of Northeast China.

b. Construction purpose

This dataset is mainly applied to the study of the evolution of black soil quality.

c. Service recipients

Students, managers, and researchers engaged in research related to agricultural ecology and ecological environment.

d. Time range of data

The data collection period is from 1981 to 2016

e. The spatial range and projection method of data

Northeast Black Soil Region
DOI: 10.57760/sciencedb.iga.00937
title: Sanjiang Plain Natural Geographic Condition Dataset (1985-1990)
title: 三江平原自然地理条件数据集（1985-1990年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Natural Geographic Conditions Dataset (1985-1990) includes three tables:

(1) The main types and areas of landforms in the Sanjiang Plain

(2) The Potential of Light Energy Production and Light Temperature Productivity of Main Crops in the Sanjiang Plain

(3) Comparison of per capita land ownership in the Sanjiang Plain with the national average

It includes indicators such as light temperature production potential, area, and light energy production potential.

b. Construction purpose

Provide basic background values for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1985 to 1990

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Natural Geographic Conditions Dataset (1985-1990) includes three tables:

(1) The main types and areas of landforms in the Sanjiang Plain

(2) The Potential of Light Energy Production and Light Temperature Productivity of Main Crops in the Sanjiang Plain

(3) Comparison of per capita land ownership in the Sanjiang Plain with the national average

It includes indicators such as light temperature production potential, area, and light energy production potential.

b. Construction purpose

Provide basic background values for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1985 to 1990

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.j00186.00369
title: design and tuning of a compact RFQ
title: design and tuning of a compact RFQ

description: design and tuning of a compact RFQ
description: design and tuning of a compact RFQ
DOI: 10.57760/sciencedb.iga.00938
title: Ecological Environment and Governance Dataset of Sanjiang Plain (1932-1987)
title: 三江平原生态环境与治理数据集（1932-1987年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Ecological Environment and Governance Dataset (1932-1987)

It includes soil fertility, rivers, forests, plants, and other contents.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1932 to 1987

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Ecological Environment and Governance Dataset (1932-1987)

It includes soil fertility, rivers, forests, plants, and other contents.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1932 to 1987

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00939
title: Soil Fertility Dataset of Swamp Wetlands in Sanjiang Plain with Different Reclamation Years (1995)
title: 三江平原沼泽化湿地不同开垦年限土壤肥力数据集（1995年）

description: a. Data content (data file/table name, including observation index content)

Data File Name: Soil Fertility Dataset of Swamp Wetlands in Sanjiang Plain with Different Reclamation Years (1995)

Contains 2 tables:

(1) Changes in soil organic matter after marshy wetland cultivation

(2) The content of water stable aggregates in the cultivated layer of swampy wetlands with different cultivation years

It includes soil organic matter, water stable aggregates, and other contents.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data was collected in 1995

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data File Name: Soil Fertility Dataset of Swamp Wetlands in Sanjiang Plain with Different Reclamation Years (1995)

Contains 2 tables:

(1) Changes in soil organic matter after marshy wetland cultivation

(2) The content of water stable aggregates in the cultivated layer of swampy wetlands with different cultivation years

It includes soil organic matter, water stable aggregates, and other contents.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data was collected in 1995

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00940
title: Sanjiang Plain Water Resources Dataset (1956-1984)
title: 三江平原水资源数据集（1956-1984年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Water Resources Dataset (1956-1984)

It includes indicators such as runoff, groundwater resources, and residential water use.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period is from 1956 to 1984

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Water Resources Dataset (1956-1984)

It includes indicators such as runoff, groundwater resources, and residential water use.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period is from 1956 to 1984

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00941
title: Sanjiang Plain Climate Resources Dataset (1960-1983)
title: 三江平原气候资源数据集（1960-1983年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Climate Resources Dataset (1960-1983)

It includes indicators such as temperature, evaporation, radiation, sunshine, frost free period, accumulated temperature, precipitation, water demand, frost, etc.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period is from 1960 to 1983

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Climate Resources Dataset (1960-1983)

It includes indicators such as temperature, evaporation, radiation, sunshine, frost free period, accumulated temperature, precipitation, water demand, frost, etc.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period is from 1960 to 1983

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00942
title: Dataset for White Soil Treatment in Sanjiang Plain Hilly Land (1981-1989)
title: 三江平原岗平地白浆土治理数据集（1981-1989年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Hilly Plain White Soil Treatment Dataset (1981-1989)

It includes indicators such as nutrients, trace elements, pores, water content, and root distribution.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period is from 1981 to 1989

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Hilly Plain White Soil Treatment Dataset (1981-1989)

It includes indicators such as nutrients, trace elements, pores, water content, and root distribution.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period is from 1981 to 1989

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00943
title: Soil Resource Dataset of Sanjiang Plain (1979-1990)
title: 三江平原土壤资源数据集（1979-1990年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Soil Resources Dataset (1979-1990)

It includes indicators such as soil area.

b. Construction purpose

Provide basic background values for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1979 to 1990

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Soil Resources Dataset (1979-1990)

It includes indicators such as soil area.

b. Construction purpose

Provide basic background values for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1979 to 1990

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00944
title: Agricultural Production Structure Dataset of Sanjiang Plain (1949-1993)
title: 三江平原农业生产结构数据集（1949-1993年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Agricultural Production Structure Dataset (1949-1993)

It includes indicators such as planting structure, total rural social output value, and agricultural land area.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1949 to 1993

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Agricultural Production Structure Dataset (1949-1993)

It includes indicators such as planting structure, total rural social output value, and agricultural land area.

b. Construction purpose

Provide basic data support for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1949 to 1993

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
DOI: 10.57760/sciencedb.iga.00945
title: Historical Dataset of Agricultural Development in the Sanjiang Plain (1949-1995)
title: 三江平原农业发展历史数据集（1949-1995年）

description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Agricultural Development History Dataset (1949-1995)

It includes indicators such as cultivated land area and land resource utilization area.

b. Construction purpose

Provide basic background values for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1949 to 1995

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.
description: a. Data content (data file/table name, including observation index content)

Data file name: Sanjiang Plain Agricultural Development History Dataset (1949-1995)

It includes indicators such as cultivated land area and land resource utilization area.

b. Construction purpose

Provide basic background values for agricultural production research in the Sanjiang Plain.

c. Service recipients

Engaged in research, management, and research personnel in related disciplines such as agricultural ecology.

d. Time range of data

The data collection period was from 1949 to 1995

e. The spatial range and projection method of data

Sanjiang Plain Swamp Wetland Ecological Experimental Station. Longitude: 133 ° 31 ″; Latitude: 47 ° 35 ″.